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2.5
SAFETY GAS CYLINDER INSTALLATION
1.
Place the cylinder on the rear section of the welder and secure by means of
the relative chain.
2.
Bolt the pressure reducer to the cylinder.
3.
Connect the tube from the rear panel of the welder to the pressure reducer.
4.
Set the pressure reducer outlet to minimum.
5.
Open the cylinder valve slowly.
2.6
WIRE REEL INSTALLATION
1.
Put the wire reel in the relative spool so that the two rotate together.
2.
Adjust the spool brake by means of the central nut on the latter, so that the
reel rotates easily (on some spools the adjustment nut is not visible, but is
accessible after withdrawing the retainer tab).
3.
Open the upper bridge of the wire feed unit
4.
Check that the rollers are suited to the diameter of the wire to be used; oth-
erwise change.
5.
Straighten an end section of the wire and cut it.
6.
Pass the wire over the two lower rollers and insert in the torch connector
tube until it protrudes from the latter by approx. 10 cm.
7.
Close the upper bridge of the wire feed unit and check that the wire is posi-
tioned in the relative groove.
8.
Connect the torch and insert the protruding wire section into the sleeve, tak-
ing care that the control pins are fitted correctly in the seats and the con-
nector nut is tightened fully down.
2.7
START-UP
1.
Switch on the machine ( Ref. 10 - Fig. 1 page 3)
2.
Set the power switch ( Ref. 11 - Fig. 1 page 3) to an intermediate position.
3.
Remove the nozzle and wire guide tube from the torch, press the torch but-
ton and feed the wire until it protrudes from the front section of the torch.
While feeding wire through the torch, use the handwheel to adjust the force
that the wire pressure roller exerts on the feed roller; the setting must
ensure that the welding wire moves regularly without slipping on the rollers
and without deforming. Fit the torch with a suitable wire guide tube accord-
ing to the type of wire used.
WELDING WIRE CAN CAUSE INJURY.
Never point the torch towards the body or towards other metals when
unwinding welding wire.
4.
Secure the wire guide tube, and ensure that the diameter corresponds to the
wire used.
5.
Refit the gas nozzle.
6.
Open the gas cylinder valve.
7.
Connect the ground clamp to the workpiece on a section free of rust, paint,
grease or plastic.
DESCRIPTION OF FRONT PANEL CONTROLS
3.0 DESCRIPTION OF FRONT PANEL CONTROLS
3.1
1
5
6
7
8
9
1 - Welding system selector:
In position
In position
and current are activated; press again to stop wire feed and current and release to
shut off the gas supply.
In position
to start the welding phase, which stops automatically after the time interval as set
on the timer potentiometer.
2 - Machine ON indicator lamp
3 - Machine overheating indicator lamp
4 - Wire feed speed control -potentiometer
5 - Spot welding time control potentiometer , from 0.3 to 10 seconds (operating
only with selector ( Ref. 1 - Fig. 1 page 3) set to position
6 - Wire feed motor acceleration time control potentiometer.
7 - Control potentiometer to regulate time during which welding power is main-
tained after the relative shutdown signal. In practice, at the end of welding, if
this time is too short, the wire remains stuck in the bath or protrudes too far from
the torch contact tube; otherwise, if the control time is too long, the wire remains
stuck in the torch contact tube, often causing damage to the latter.
8 - Euro torch connector
9 - Quick connectors for ground clamp
10 - Power switch.
11 - Welding voltage adjustment switch.
(GB) 3
FRONT PANEL
Figure 1.
press the torch button to start welding, and release to stop.
press the torch button to deliver gas; on release, wire feed
the welder operates in timed mode; press the torch button
GB
2
3
4
10
11
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